Exemptions should always be reflected on the tax bill of the year that the exemption is in effect. If applications are received by the due date, and approved, the exemption will appear on the December tax bill.
All applications for tax exemptions will receive a determination letter either of approval or denial by May 1st of that year. If the exemption is denied, the applicant will have sufficient time to file for a grievance by Grievance Day (third Tuesday of May).
If your exemption does not appear on the tax bill, contact the Assessor's Office, (631) 957-3014, to inquire as to the specific reason why it does not appear.